GPS Space Vehicle Time Integrity for MJD 52881

As viewed from the Measurement Standards Laboratory, Lower Hutt, New Zealand
Latitude -41.2348000 degrees, longitude 174.9175025 degrees, height 26.2 metres

ABCDEFGHIJK
PRNBlock
no.		StartEndMeasure-
ments		REF
-GPSSV (ns)		REF
-SV (ns)		Std.Dev.
(ns)		Outliers
> 4 s		Outliers
> 500 ns		Health 
1
1
12:54
18:43
 20,981
  -129
  -302,760
23
49
0
0
 
2
1
12:58
18:11
 18,781
  -122
   176,512
28
0
0
0
 
3
3
1
2
07:17
14:55
09:39
19:09
  8,507
 15,214
  -130
  -126
   -40,380
   -40,473
19
25
5
6
0
0
0
0
 
4
1
00:00
02:43
  9,783
  -128
   -35,742
8
21
0
0
 
5
1
00:00
04:22
 15,712
  -118
   -51,187
16
53
0
0
 
6
1
02:14
07:17
 18,166
  -120
     7,239
10
10
0
0
 
7
1
19:35
22:00
  8,685
  -115
  -612,886
23
0
0
0
 
8
1
16:51
22:00
 18,525
  -120
  -413,265
25
20
0
0
 
9
9
1
2
00:00
06:38
01:31
09:28
  5,447
 10,196
  -123
  -122
     4,489
     4,536
10
8
78
69
0
0
0
0
 
10
1
00:59
05:54
 17,700
  -122
   -30,713
14
18
0
0
 
11
11
1
2
10:04
18:38
13:24
22:00
 12,026
 12,108
  -130
  -121
   -63,873
   -63,918
14
13
34
34
0
0
0
0
 
12
-
 
 
 
 
 
 
 
 
 
13
1
14:11
19:34
 19,388
  -131
    30,665
8
62
0
0
 
14
1
07:38
12:39
 18,092
  -123
    20,494
12
63
0
0
 
15
1
05:57
11:20
 19,349
  -122
  -153,080
39
4
0
0
 
16
1
12:31
17:13
 16,893
  -128
   -73,478
34
0
0
0
 
17
1
01:34
07:17
 20,542
  -117
  -276,217
170
0
0
0
 
18
1
05:01
11:12
 22,287
  -124
   -11,320
8
8
0
0
 
19
-
 
 
 
 
 
 
 
 
 
20
1
11:41
16:29
 17,312
  -130
   211,462
15
82
0
0
 
21
1
03:27
09:51
 23,012
  -126
   -35,023
58
0
0
0
 
22
-
 
 
 
 
 
 
 
 
 
23
1
08:48
12:52
 14,643
  -128
   -34,649
9
149
0
0
 
24
1
00:00
03:53
 13,998
  -126
   -56,136
18
0
0
0
 
25
1
09:50
14:53
 18,170
  -121
   -50,998
12
96
0
0
 
26
26
26
1
2
3
04:22
07:17
19:50
06:37
08:18
22:00
  8,091
  3,624
  7,690
  -115
  -133
  -125
  -523,217
  -523,222
  -523,144
5
6
10
65
4
80
0
0
0
0
0
0
 
27
1
15:37
21:45
 22,085
  -129
  -601,885
242
0
0
0
 
28
1
17:54
22:00
 14,750
  -129
    13,245
12
8
0
0
 
29
29
29
1
2
3
03:12
05:13
18:52
05:00
07:20
21:47
  6,493
  7,642
 10,481
  -112
  -131
  -130
   -63,960
   -64,123
   -65,060
36
46
57
0
1
0
0
1
0
0
0
0
 
30
30
1
2
00:44
10:43
05:00
13:00
 15,404
  8,054
  -118
  -130
  -443,100
  -444,193
154
84
1
0
1
0
0
0
 
31
31
1
2
08:19
15:59
09:48
20:34
  5,359
 16,463
  -132
  -131
  -385,206
  -385,610
24
63
1
0
0
0
0
0
 
32
-
 
 
 
 
 
 
 
 
 
33
-
 
 
 
 
 
 
 
 
 
34
-
 
 
 
 
 
 
 
 
 
35
-
 
 
 
 
 
 
 
 
 
36
-
 
 
 
 
 
 
 
 
 
37
-
 
 
 
 
 
 
 
 
 
38
-
 
 
 
 
 
 
 
 
 
39
-
 
 
 
 
 
 
 
 
 
40
-

A: Space vehicle identification number.
B: The period when the satellite was in view. Each of these measurement blocks is a series of measurements longer than 60 minutes, containing no breaks of more than 60 seconds.
C: Time at the start of the block (UTC).
D: Time at the end of the block (UTC).
E: Number of 1 second pseudorange measurements in the block.
F: Average value of local reference minus GPS satellite time during the block (A constant offset over the course of a day is to be expected).
G: Average value of local reference minus space vehicle time during the block, in nanoseconds.
H: Standard deviation of G during the block, in nanoseconds.
I: Number of measurements more than 4 standard deviations from the average.
J: Number of measurements more than 500 ns from the average.
K: Number of non-zero health flags in the block.